ML20071D946

NPDES Noncompliance Notification:On 830223,grab Sample Collected from Concrete Batch Plant Settling Pond Contained 53 Mg/L Total Suspended Solids.Caused by Rainfall Runoff Vol Exceeding Treatment Capacity of Pool.No Action Taken

ML20071D946
Person / Time
Site:	Sequoyah
Issue date:	03/08/1983
From:	Elashry M TENNESSEE VALLEY AUTHORITY
To:	Marlar J ENVIRONMENTAL PROTECTION AGENCY
References
TN0026450, TN26450, NUDOCS 8303110375
Download: ML20071D946 (2)

Text

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e. e TENNESSEE VALLEY AUTHORITY KNOXVILL E. TENNESSEE 37902 TVA Mailroom MAR 8 1983 Mr. John Marlar, Chief jl Facilities Performance Branch J Water Management Division l U.S. Environmental Protection Agency Region IV 345 Courtland Street, NE.

Atlanta, Georgia 30365

Dear Mr. Marlar:

NOTIFICATION OF NONCOMPLIANCE WITH EFFLUENT LIMITATIONS - NPDES PERMIT NO. TN0026450 - SEQUOYAH NUCLEAR PLANT Description of the discharge--Discharge No. 008 - Concrete batch plant settling pond effluent. A grab sample collected at 10:07 a.m. on February 23 i contained 53 mg/L of total suspended solids (TSS), exceeding the maximum permit limitation of 50 mg/L.

Cause and period of the noncompliance--The noncompliance was due to rainfall runoff volume that exceeded the treatment capacity of the pond.

A 1.2-inch rain occurred in the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> preceding the sampling. A sample collected on February 16 at 7:20 a.m. contained 14 mg/L TSS, and a sample collected on February 24 at 12:05 p.m. contained 41 mg/L TSS.

Therefore, the period of noncompliance was less than 195 hours0.00226 days <br />0.0542 hours <br />3.224206e-4 weeks <br />7.41975e-5 months <br />.

! Steps taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge--Because of the nature of this noncompliance (extremely heavy precit .itation), no action is reconnended at this time.

Sincerely, Original Signed By M. Paul Schmierbach l

i

Mohamed T. El-Ashry, Ph.D.

} Director of Environmental Quality cc: See page 2 h'

8303110375 830308  !

PDR ADOCK 05000327 PDR 1

g 1983-TVA SOTH ANNIVERSARY An Equal Oppor tumty Employer

• 6 Mr. John Marlar cc: Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Comnission 7920 Norfolk Avenue Washington, D.C. 20555 Mr. Jack R. McCormick, Basin Manager Chattanooga Basin Office Division of Water Quality Control 2501 Milne Street Chattanooga, Tennessee 37406 Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II 101 Marietta Street Atlanta, Georgia 30303 Tennessee Department of Public Health Division of Water Quality Control TERRA Building 150 Ninth Avenue, North Nashville, Tennessee 37203